SACRAMENTO – A marathon legislative session that kept sleep-deprived lawmakers in the Capitol all weekend abruptly adjourned late Sunday night without resolution of the state’s $42billion budget deficit.

The governor and legislative leaders from both parties warned that California faces insolvency unless the Legislature enacts a midyear budget fix.

Legislators worked for hours to find one more Republican to support a much-negotiated package of tax increases and budget cuts. The package requires a two-thirds vote of support from lawmakers, meaning it needs a yes from at least three Republicans in each chamber. It appeared to have five of the six necessary.

“The only thing we’re waiting on is the tax bill. I’m confident we have the votes. Our concern is we don’t want to get stuck here,” Democratic Assembly Speaker Karen Bass said. “The problem is in this house.”

The group was “just trying to show those who have expressed some interest that this package of reforms is the right away to go, and we have to act now … to show them how important it is to get something now, to get ourselves out of this short-term financial crisis,” said Assemblyman Anthony Adams, R-Claremont, who was part of the all-night effort and is one of a few Republicans who support the budget.

After meeting all night, both chambers called recesses Sunday morning so lawmakers could nap and shower after a record-setting 30-hour session.

The Senate resumed budget debate Sunday afternoon, and lawmakers were trying to win over the single Republican vote by approving new budget-related bills aimed at stimulating the economy.

“In just the last 36 hours we have got $1 billion-plus in tax credits,” said Sen. Ron Calderon, D-Montebello, who sponsored some of the legislation that has moved forward.

“We know what the consequences are if we don’t get a budget, but we are also concerned about what sacrifices are being made,” he said.

By Sunday evening, approval of the $14.4 billion tax increase bill needed to close the state’s budget deficit had been left in doubt.

Senate leader Darrell Steinberg angrily brought the session to a close after a Republican lawmaker complained that the package of spending cuts, tax hikes and borrowing designed to erase the deficit had been put together in secret.

Steinberg said the Senate would continue to meet daily until it broke the deadlock.

Calderon doesn’t expect lawmakers to give up on the budget as currently proposed.